This drama had so much potential. It was very funny in parts, the relationship between the 4 friends is awesome. Each of their love lives is also distinct.
The one stand out actor was the 24-year old sister who is in love with the older oppa, her brothers friend.

However the ethical dilemma seemed very hypocritical. It really killed the beauty of this drama.
As a global audience,not very familiar with the delicate nuances of Korean culture, I found it very hypocritical.

It's okay and acceptable if a young college girl in her twenties sleeps with a minimum of 4 men, best friends at that.
But it's not okay for a 40 year old single man, who has a son from a previous relationship, to date a 30 plus woman?
Because the society is going to label this 30 plus woman?? But is approving of young college women to indulge rampantly in sex?

This logic blew me. It killed the essence of the drama.